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/* $NetBSD: fb.c,v 1.11 1995/10/08 01:39:19 pk Exp $ */
/*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Lawrence Berkeley Laboratory.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)fb.c 8.1 (Berkeley) 6/11/93
*/
/*
* /dev/fb (indirect frame buffer driver). This is gross; we should
* just build cdevsw[] dynamically.
*/
#include <sys/param.h>
#include <sys/conf.h>
#include <sys/device.h>
#include <sys/proc.h>
#include <machine/autoconf.h>
#include <machine/fbio.h>
#include <machine/fbvar.h>
#if defined(SUN4)
#include <machine/eeprom.h>
#endif
static struct fbdevice *devfb;
void
fb_unblank()
{
if (devfb)
(*devfb->fb_driver->fbd_unblank)(devfb->fb_device);
}
void
fb_attach(fb)
struct fbdevice *fb;
{
if (devfb) panic("multiple /dev/fb declarers");
devfb = fb;
}
int
fbopen(dev, flags, mode, p)
dev_t dev;
int flags, mode;
struct proc *p;
{
if (devfb == NULL)
return (ENXIO);
return (devfb->fb_driver->fbd_open)(dev, flags, mode, p);
}
int
fbclose(dev, flags, mode, p)
dev_t dev;
int flags, mode;
struct proc *p;
{
return (devfb->fb_driver->fbd_close)(dev, flags, mode, p);
}
int
fbioctl(dev, cmd, data, flags, p)
dev_t dev;
u_long cmd;
caddr_t data;
int flags;
struct proc *p;
{
return (devfb->fb_driver->fbd_ioctl)(dev, cmd, data, flags, p);
}
int
fbmmap(dev, off, prot)
dev_t dev;
int off, prot;
{
int (*map)__P((dev_t, int, int)) = devfb->fb_driver->fbd_mmap;
if (map == NULL)
return (-1);
return (map(dev, off, prot));
}
void
fb_setsize(fb, depth, def_width, def_height, node, bustype)
struct fbdevice *fb;
int depth, def_width, def_height, node, bustype;
{
/*
* The defaults below match my screen, but are not guaranteed
* to be correct as defaults go...
*/
switch (bustype) {
case BUS_VME16:
case BUS_VME32:
case BUS_OBIO:
/* Set up some defaults. */
fb->fb_type.fb_width = def_width;
fb->fb_type.fb_height = def_height;
/*
* This is not particularly useful on Sun 4 VME framebuffers.
* The EEPROM only contains info about the built-in.
*/
if (cputyp == CPU_SUN4 && (bustype == BUS_VME16 ||
bustype == BUS_VME32))
goto donesize;
#if defined(SUN4)
if (cputyp==CPU_SUN4) {
struct eeprom *eep = (struct eeprom *)eeprom_va;
if (eep != NULL) {
switch (eep->eeScreenSize) {
case EE_SCR_1152X900:
fb->fb_type.fb_width = 1152;
fb->fb_type.fb_height = 900;
break;
case EE_SCR_1024X1024:
fb->fb_type.fb_width = 1024;
fb->fb_type.fb_height = 1024;
break;
case EE_SCR_1600X1280:
fb->fb_type.fb_width = 1600;
fb->fb_type.fb_height = 1280;
break;
case EE_SCR_1440X1440:
fb->fb_type.fb_width = 1440;
fb->fb_type.fb_height = 1440;
break;
default:
/*
* XXX: Do nothing, I guess.
* Should we print a warning about
* an unknown value? --thorpej
*/
break;
}
}
}
#endif /* SUN4 */
#if defined(SUN4M)
if (cputyp==CPU_SUN4M) {
/* XXX: need code to find 4/600 vme screen size */
}
#endif /* SUN4M */
donesize:
fb->fb_linebytes = (fb->fb_type.fb_width * depth) / 8;
break;
case BUS_SBUS:
fb->fb_type.fb_width = getpropint(node, "width", 1152);
fb->fb_type.fb_height = getpropint(node, "height", 900);
fb->fb_linebytes = getpropint(node, "linebytes",
(fb->fb_type.fb_width * depth) / 8);
break;
default:
panic("fb_setsize: inappropriate bustype");
/* NOTREACHED */
}
}
#ifdef RASTERCONSOLE
#include <machine/kbd.h>
extern int (*v_putc) __P((int));
static int
a2int(cp, deflt)
register char *cp;
register int deflt;
{
register int i = 0;
if (*cp == '\0')
return (deflt);
while (*cp != '\0')
i = i * 10 + *cp++ - '0';
return (i);
}
static void
fb_bell(on)
int on;
{
(void)kbd_docmd(on?KBD_CMD_BELL:KBD_CMD_NOBELL, 0);
}
#include <sparc/dev/rcons_font.h>
void
fbrcons_init(fb)
struct fbdevice *fb;
{
struct rconsole *rc = &fb->fb_rcons;
/*
* Common glue for rconsole initialization
* XXX - mostly duplicates values with fbdevice.
*/
rc->rc_linebytes = fb->fb_linebytes;
rc->rc_pixels = fb->fb_pixels;
rc->rc_width = fb->fb_type.fb_width;
rc->rc_height = fb->fb_type.fb_height;
rc->rc_depth = fb->fb_type.fb_depth;
/* Setup the static font */
rc->rc_font = &console_font;
#if defined(RASTERCONS_FULLSCREEN) || defined(RASTERCONS_SMALLFONT)
rc->rc_maxcol = rc->rc_width / rc->rc_font->width;
rc->rc_maxrow = rc->rc_height / rc->rc_font->height;
#else
#if defined(SUN4)
if (cputyp == CPU_SUN4) {
struct eeprom *eep = (struct eeprom *)eeprom_va;
if (eep == NULL) {
rc->rc_maxcol = 80;
rc->rc_maxrow = 34;
} else {
rc->rc_maxcol = eep->eeTtyCols;
rc->rc_maxrow = eep->eeTtyRows;
}
}
#endif /* SUN4 */
#if defined(SUN4C) || defined(SUN4M)
if (cputyp != CPU_SUN4) {
rc->rc_maxcol =
a2int(getpropstring(optionsnode, "screen-#columns"), 80);
rc->rc_maxrow =
a2int(getpropstring(optionsnode, "screen-#rows"), 34);
}
#endif /* SUN4C || SUN4M */
#endif /* RASTERCONS_FULLSCREEN || RASTERCONS_SMALLFONT */
#if !(defined(RASTERCONS_FULLSCREEN) || defined(RASTERCONS_SMALLFONT))
/* Determine addresses of prom emulator row and column */
if (cputyp == CPU_SUN4 ||
romgetcursoraddr(&rc->rc_row, &rc->rc_col))
#endif
rc->rc_row = rc->rc_col = NULL;
rc->rc_bell = fb_bell;
rcons_init(rc);
/* Hook up virtual console */
v_putc = (int (*) __P((int)))rcons_cnputc;
}
#endif
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